Characteristics of sleep disorders in patients with chronic back pain

Background. Insomnia is considered a risk factor for the frequency of pain, however, no reliable studies with a comprehensive analysis of the objective polysomnography data have been conducted so far. Objective. Using the method of polysomnography, to assess the changes in the structure of sleep in the chronic pain syndrome, by the example of chronic back pain. Methods. The study was carried out in two groups (basic and control,) in which the patients were examined according to the following algorithm: an objective examination, assessment of the neurological status, filling in neurological scales and questionnaires, a single comprehensive study of the night sleep (polysomnography). Results. According to the data of the polysomnographic study, presomnic disorders were detected in 25% of patients, intrasomnic disorders in 48%, and postsomnic disorders in 17%. Conclusion. These sleep patterns, measured by polysomnography, demonstrate a link between sleep disorders, changes in the psycho-vegetative status, and chronic pain syndrome.